Detections
Analytics
Amazon Linux 2023 : alsa-lib, alsa-lib-devel, alsa-topology (ALAS2023-2026-3429)
medium Nessus Plugin ID 379822
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3429 advisory.alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters.
Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process. (CVE-2026-90781)
alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-bounds array read and assertion failure, causing the application to abort. (CVE-2026-96675)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'dnf update alsa-lib --releasever 2023.12.20261112' or or 'dnf update --advisory ALAS2023-2026-3429 --releasever 2023.12.20261112' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-3429.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: Medium
ID: 379822
File Name: al2023_ALAS2023-2026-3429.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 11/12/2026
Updated: 11/12/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.1
Percentile: 53.47
CVSS v2
Risk Factor: Low
Base Score: 3.2
Temporal Score: 2.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:P
CVSS Score Source: CVE-2026-90781
CVSS v3
Risk Factor: Medium
Base Score: 4.4
Temporal Score: 3.9
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 4.8
Threat Score: 1.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-96675
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:alsa-lib-debuginfo, p-cpe:/a:amazon:linux:alsa-lib-debugsource, p-cpe:/a:amazon:linux:alsa-lib-devel, p-cpe:/a:amazon:linux:alsa-lib, p-cpe:/a:amazon:linux:alsa-topology, p-cpe:/a:amazon:linux:alsa-ucm
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 11/12/2026
Vulnerability Publication Date: 9/13/2026
Reference Information
CVE: CVE-2026-90781, CVE-2026-96675